Some more details please. Operating System? Where in the Web UI do you get this error? Have you got a valid hosts file and correct DNS A & MX records? What errors do you see in the log files? What's in the stack trace?

Some more details please. Operating System? Where in the Web UI do you get this error? Have you got a valid hosts file and correct DNS A & MX records? What errors do you see in the log files? What's in the stack trace?

OS SLES10SP3, in the stacktrace there is a result of a "kill -3" of JVM about threads..

in webui i get this error on server statistics, also server stats are all with red X

now i'm downloading 6.0.3 and try to install this to see if it's a problem of OS or zcs install

XX:/opt # cat /etc/hosts
#
# hosts This file describes a number of hostname-to-address
# mappings for the TCP/IP subsystem. It is mostly
# used at boot time, when no name servers are running.
# On small systems, this file can be used instead of a
# "named" name server.
# Syntax:
#
# IP-Address Full-Qualified-Hostname Short-Hostname
#